Studies of ion energy and yield from argon clusters heated by intense femtosecond laser pulses S. H. Li, C. Wang, J. S. Liu, X. X. Wang, R. X. Li, G. Q. Ni and Z. Z. Xu Eur. Phys. J. D, 34 1-3 (2005) 215-218 Published online: 13 July 2005 DOI: 10.1140/epjd/e2005-00145-2